1. Robot: Mere Machine to Transcendent Mind;Moravec,1999
2. The Age of Spiritual Machines: When computers exceed human intelligence;Kurzweil,1999
3. How Long Before Superintelligence?;Bostrom;International Journal of Futures Studies,1998
4. The Molecular Repair of the Brain;Merkle;Cryonics,1994
5. The Coming Technological Singularity;Vinge;Whole Earth Review,1993